Reflecting on your process and how to improve it is an important part of agile methods.
Later this month, Diana Larsen is leading a class on retrospectives that may be of some interest:
"Project Retrospectives and Reviews: A Facilitator's Toolkit,"
January 24-25, 2005, at Oregon Graduate Institute;
She's also announcing another class in April:
"The Secrets of Agile Teamwork: Beyond Technical Skills,"
presented by Diana Larsen, Esther Derby, and Ken Schwaber.
April 5-7, 2004. See www.futureworksconsulting.com